static O nuObjectWithoutArguments(S className) ctex {
  ret nuObject(Class.forName(className), args);
}

static <A> A nuObjectWithoutArguments(Class<A> c) ctex {
  Constructor m = nuObjectWithoutArguments_findConstructor(c);
  m.setAccessible(true);
  return (A) m.newInstance(args);
}

static Constructor nuObjectWithoutArguments_findConstructor(Class c, Object... args) {
  for (Constructor m : c.getDeclaredConstructors())
    if (empty(m.getParameterTypes())) ret m;
  fail("No default constructor found in " + c.getName());
}